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En
6. Maintaining the Waterproof Function
Remove the O-ring.
Open the Case and remove the O-ring from the Case.
Removal of the O-ring
Insert the O-ring removal pick between the O-ring and the wall of the O-ring groove.
Move the tip of the inserted pick under the O-ring. (Take care not to damage the O-ring
groove with the tip of the pick.)
Hold the O-ring with your fingertips after it has come out of the groove and remove it from
the Case.
Remove any sand, dirt, etc.
After visually checking that dirt has been removed from the O-ring, checking for attached
sand and other foreign matter, as well as for damage and cracks can be done by squeezing
the entire circumference of the O-ring lightly with your fingertips.
Use a lint-free clean cloth or cotton swab to remove the foreign matter attached to the O-
ring groove. Also, remove any sand or dust from the O-ring contact surface on the Case.
：
• When a mechanical pencil or a similar other sharp object is used to remove the O-
ring or to clean the inside of the O-ring groove, the Case and the O-ring may be
damaged and water leakage may be caused.
• When the O-ring is checked with the fingertips, take care not to stretch the O-
ring.
• Never use alcohol, thinner, benzene or similar solvents or chemicals detergents
to clean the O-ring. When such chemicals are used, it is likely that the O-ring will
be damaged or that its deterioration will be accelerated.
CAUTION
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